/**
 * This file is part of Graylog.
 *
 * Graylog is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Graylog is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Graylog.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.graylog.plugins.views.search.util;

/**
 * Utility class to generate unique names.
 *
 * Not threadsafe, you need to lock externally.
 */
public class UniqueNamer {

    private final String prefix;

    private long number = 0;

    public UniqueNamer() {
        this("name-");
    }

    public UniqueNamer(String prefix) {
        this.prefix = prefix;
    }

    public String nextName() {
        return prefix + ++number;
    }

    public String currentName() {
        return prefix + number;
    }

}
